CN210057893U

CN210057893U - Standardized granule SCR denitration catalyst module

Info

Publication number: CN210057893U
Application number: CN201920269531.9U
Authority: CN
Inventors: 张齐峰; 卢昊; 袁英刚; 唐雪君
Original assignee: Anhui Morning Cleaning Technology Co Ltd
Current assignee: Anhui Morning Cleaning Technology Co Ltd
Priority date: 2019-03-04
Filing date: 2019-03-04
Publication date: 2020-02-14
Anticipated expiration: 2029-03-04

Abstract

The utility model provides a standardized granule SCR denitration catalyst module relates to denitration catalyst module, including catalyst unit, catalyst frame, the equal rectangle array in catalyst frame's inside is provided with a plurality of catalyst unit, and there is the silk screen ring in catalyst unit's inside, and the silk screen ring inside includes interior silk screen and outer silk screen, and the inside packing of silk screen ring has the catalyst. The utility model discloses in, for traditional honeycomb body catalyst the utility model discloses have that the surface area is big, mechanical strength is high, the motive force is big, advantages such as small, and under the same operating mode condition, the denitration effect that this catalyst module reaches with traditional honeycomb body catalyst relatively is better, consequently to existing denitrification facility, satisfying the granule body catalyst and using under the prerequisite of operating mode, can change granule body catalyst module, satisfy the change of current denitrification facility catalyst promptly, realize the upgrading transformation requirement of current device again, still reduced the catalyst cost simultaneously.

Description

Standardized granule SCR denitration catalyst module

Technical Field

The utility model relates to a denitration catalyst module especially relates to a standardized granule SCR denitration catalyst module.

Background

The denitration catalyst generally refers to a catalyst applied to an SCR denitration system, and in an SCR reaction, a reducing agent is promoted to selectively react with nitrogen oxides in flue gas at a certain temperature. At present, the commercial SCR catalyst basically takes TiO2 as a carrier, V2O5 as a main active component and WO3 and MoO3 as antioxidant and antitoxic auxiliary components. The catalyst is the core part of the SCR technology, the denitration efficiency and the economy of an SCR system are determined, the construction cost of the catalyst accounts for more than 20% of the flue gas denitration engineering cost, and the operation cost of the catalyst accounts for more than 30%.

Traditional catalyst types can be divided into three categories: plate, honeycomb and corrugated plate, the catalyst applications of which have essentially been standardized; however, the granular catalyst is rarely used in the market at present, and the catalyst is not modularized like the traditional catalyst form, so that the granular catalyst has a blank in the market when the traditional modularized SCR denitration catalyst device is subjected to catalyst replacement and a modularized catalyst is needed in a newly-built SCR denitration project.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a standardized granule SCR denitration catalyst module to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: a standardized granule SCR denitration catalyst module, includes catalyst unit, catalyst frame, its characterized in that:

the equal rectangular array in inside of catalyst frame is provided with a plurality of catalyst unit, there is the silk screen ring catalyst unit's inside, and the silk screen ring inside includes interior silk screen and outer silk screen, and the inside packing of silk screen ring has the catalyst, catalyst unit's bottom is provided with the bottom plate to it is sealed with the silk screen ring, be located on the catalyst frame catalyst unit's the top outside is provided with outer cornice for connect the card.

Preferably, the outer eaves plate is provided with catalyst filling holes, and the shape of the catalyst filling holes can be fan-shaped or oval, square and the like.

Preferably, the top of the catalyst frame is provided with a first sealing strip and a second sealing strip respectively, the first sealing strip and the second sealing strip are arranged vertically, and the first sealing strip and the second sealing strip are made of refractory materials.

Preferably, four side edges of the catalyst frame are provided with four baffle plates for fixing, the four baffle plates are connected in pairs through connecting plates, each connecting plate is of an L-shaped structure, a groove is formed in the connecting plate and used for connecting the baffle plates, and bolt holes for fixing the baffle plates are further formed in the outer sides of the connecting plate.

Preferably, the number of the catalyst units in the first catalyst frame and the second catalyst frame can be set to be a rectangular array, and the array arrangement parameters are calculated according to the process design.

Preferably, the overlooking shape of the catalyst unit is a circular structure, and parameters such as the diameter of an inner circle, the diameter of an outer circle and the height of the catalyst unit are calculated according to process design. And the standardized specification of the catalyst unit is adopted, so that the practicability and the stability are higher.

Preferably, the thickness of the first sealing strip and the second sealing strip is 0.8mm-10 mm.

Preferably, the bottom of the catalyst unit is provided with a support for supporting the catalyst unit, and the support is inside the catalyst module.

The utility model has the advantages that:

in the utility model, firstly, compared with the traditional honeycomb catalyst, the utility model has the advantages of large surface area, high mechanical strength, large driving force, small volume and the like, and under the same working condition, the catalyst module has better denitration effect than the traditional honeycomb catalyst, therefore, for the existing denitration device, under the premise of meeting the use working condition of the particle catalyst, the particle catalyst module can be replaced, namely, the replacement of the existing denitration device catalyst is met, the upgrading and reconstruction requirements of the existing device are realized, simultaneously, the catalyst cost is reduced, secondly, no gap exists in the connection between the catalyst module and the flower plate by arranging the first sealing strip and the second sealing strip, good sealing and fireproof effects are achieved, simultaneously, the high temperature resistant effect can be achieved, thereby the service life of the catalyst unit is well prolonged, through the outside that a plurality of dogs fixed to a plurality of catalyst frames, stability when not only can increase its connection, simultaneously through the fixed mode of block, then the equipment is more convenient.

Drawings

FIG. 1 is a schematic structural diagram of a catalyst frame according to the present invention;

FIG. 2 is a cross-sectional view of a catalyst unit of the present invention;

FIG. 3 is a schematic structural view of the outer cornice of the present invention;

FIG. 4 is a top view of the catalyst frame of the present invention;

FIG. 5 is a schematic structural view of the catalyst frame of the present invention when connected to a baffle plate;

FIG. 6 is a schematic structural view of the pattern plate of the present invention;

reference numerals: 1. a catalyst unit; 2. a catalyst frame; 3. a wire mesh ring; 4. an outer eaves plate; 5. a base plate; 6. a first seal strip; 7. a second seal strip; 8. a baffle plate; 9. a groove; 10. connecting the plates; 11. A bolt opening; 12. and (5) a pattern plate.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-6, a standardized granule SCR denitration catalyst module, including catalyst unit 1, catalyst frame 2's the equal rectangular array in inside is provided with a plurality of catalyst unit 1, there is wire net ring 3 catalyst unit 1's inside, wire net ring 3 is inside to include interior wire net and outer wire net, and the inside packing of wire net ring 3 has the catalyst, catalyst unit 1's bottom is provided with bottom plate 5, and it is sealed with wire net ring 3, it is provided with outer cornice 4 to lie in catalyst unit 1's top outside on catalyst frame 2, be used for connecting card 12.

The outer eaves plate 4 is provided with catalyst filling holes, and the shape of the catalyst filling holes can be fan-shaped or oval, square and the like.

During the use, the flue gas gets into catalyst unit 1 inside from catalyst frame 2 top, then transversely through the interior silk screen in the silk screen ring 3, granule catalyst bed, the outer silk screen in the silk screen ring 3, then downward outflow catalyst module, in this process, this flue gas flow direction is for advancing down, and the flue gas flow direction also can be for advancing down and going up out simultaneously, and the flue gas is when passing through granule catalyst bed, with the entering of vertically mode, this kind of mode, the flue gas is in catalyst granule gap, through baffling many times and collision, fluid torrent degree is very high, the outer diffusion rate improves by a wide margin, its reaction driving force also increases by a wide margin.

Example 2

The top of the catalyst frame 2 is provided with a first sealing strip 6 and a second sealing strip 7 respectively, the first sealing strip 6 and the second sealing strip 7 are vertically arranged, and the first sealing strip 6 and the second sealing strip 7 are both made of refractory materials. Four sides of catalyst frame 2 are provided with baffle 8 that is used for fixing, and baffle 8 is provided with four altogether, and connects through connecting plate 10 between four baffle 8 two liang, connects plate 10 and is "L" type structure, and connects the inside of plate 10 and seted up recess 9 for connecting baffle 8, the bolt mouth 11 that is used for fixed stop 8 is still seted up in the outside of connecting plate 10.

Through being provided with four baffles 8 in the catalyst frame 2 outside, and be connected to together between two liang with four baffles 8 through connecting plate 10, simultaneously through the assistance of bolt, carry out inseparable connection through four baffles 8 to catalyst frame 2, it is more convenient to make this catalyst frame 2 equipment through such setting, simple structure is made simultaneously, and the structure is modularized, it is more stable to catalyst frame 2's fixed, prevent to cause the flue gas circulation to block up, influence the reaction effect of catalyst, first sealing strip 6 and second sealing strip 7 at 2 tops of catalyst frame, then when catalyst frame 2 is connected with card 12, can play sealed effect, otherwise the flue gas is revealed.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A standardized granule SCR denitration catalyst module, includes catalyst unit (1), catalyst frame (2), its characterized in that:

the equal rectangular array in inside of catalyst frame (2) is provided with a plurality ofly catalyst unit (1), there is wire net ring (3) in the inside of catalyst unit (1), and wire net ring (3) inside includes interior wire net and outer wire net, and the inside packing of wire net ring (3) has the catalyst, the bottom of catalyst unit (1) is provided with bottom plate (5) to it is sealed with wire net ring (3), lie in on catalyst frame (2) the top outside of catalyst unit (1) is provided with outer cornice board (4) for connect card (12).

2. The standardized particulate body SCR denitration catalyst module of claim 1, wherein: catalyst filling holes are formed in the outer cornice plate (4), and the shape of the catalyst filling holes is fan-shaped, oval or square.

3. The standardized particulate body SCR denitration catalyst module of claim 1, wherein: the top of catalyst frame (2) is provided with first sealing strip (6) and second sealing strip (7) respectively, and is arranged for the vertical between first sealing strip (6) and second sealing strip (7), first sealing strip (6) and second sealing strip (7) all adopt refractory material to make.

4. The standardized particulate body SCR denitration catalyst module of claim 1, wherein: four sides of catalyst frame (2) are provided with baffle (8) that are used for fixing, and baffle (8) are provided with four altogether, and connect through connecting plate (10) between four baffle (8) two liang, connecting plate (10) are "L" type structure, and the inside of connecting plate (10) is seted up fluted (9) for connecting baffle (8), bolt mouth (11) that are used for fixed stop (8) are still seted up in the outside of connecting plate (10).

5. The standardized particulate body SCR denitration catalyst module of claim 1, wherein: the number of the catalyst units (1) in the catalyst frame (2) can be set to be a rectangular array, and array arrangement parameters are calculated according to process design.

6. The standardized particulate body SCR denitration catalyst module of claim 1, wherein: the overlooking shape of the catalyst unit (1) is a circular structure, and the parameters of the inner circle diameter, the outer circle diameter and the height are calculated according to the process design.

7. The standardized particulate body SCR denitration catalyst module of claim 3, wherein: the thickness of the first sealing strip (6) and the second sealing strip (7) is 0.8mm-10 mm.

8. The standardized particulate body SCR denitration catalyst module of claim 1, wherein: the bottom of the catalyst unit (1) is provided with a support for supporting the catalyst unit (1), and the support is arranged inside the catalyst unit (1).